Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. The vapour compression refrigerator employs the following cycle

2. In a refrigeration system, the expansion device is connected between the

3. The condition of refrigerant after passing through the condenser in a vapour compression system is

4. Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

5. The curved lines on a psychrometric chart indicates

6. In a refrigeration system, heat absorbed in comparison to heat rejected is

7. The operating pressure for refrigerating units using R-12 as a refrigerant is

8. Which of the following statement is correct?

9. In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about

10. A thermostatic expansion valve in a refrigeration system


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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